Thank you for your question. We sincerely apologize you are having problems with the drift wood you purchased from us. To avoid discoloring your water, soak your driftwood for as long as possible before placement. Total submersion for 1-2 weeks is recommended, since the tannic acids take that long to completely leach out of the dense wood. Boiling your driftwood in a large stockpot for 1-2 hours prior to soaking may help shorten the required cure time down to 48-72 hours. Only use de-chlorinated or RO water, and scrub the wood with an algae brush to remove excess dirt. Monitor your soaking driftwood throughout the week, watching as the water darkens, and refresh the soak water every other day or so, until you no longer notice any discoloration for several days in a row. The driftwood is then ready for placement.
If your water discolors even after your patient weeks of soaking, we recommend Purigen (#434587) to help clarify your water again.
If you have done this, we would recommend boiling the driftwood again to ensure that all of the tannic acids are removed.
This will also help with the algae that has started to grow on the driftwood.